title: 20 W continuous-wave cladding-pumped Nd-doped fiber laser at 910 nm.
abstract: We demonstrate a double-clad fiber laser operating at 910 nm with a record power of 20 W. Laser emission on the three-level scheme is enabled by the combination of a small inner cladding-to-core diameter ratio and a high brightness pump source at 808 nm. A laser conversion efficiency as high as 44% was achieved in CW operating regime by using resonant fiber Bragg reflectors at 910 nm that prevent the lasing at the 1060 nm competing wavelength. Furthermore, in a master oscillator power-amplifier scheme, an amplified power of 14.8 W was achieved at 914 nm in the same fiber.
authors.forename: M
authors.initials: M
authors.lastname: Laroche
authors.forename: B
authors.initials: B
authors.lastname: Cadier
authors.forename: H
authors.initials: H
authors.lastname: Gilles
authors.forename: S
authors.initials: S
authors.lastname: Girard
authors.forename: L
authors.initials: L
authors.lastname: Lablonde
authors.forename: T
authors.initials: T
authors.lastname: Robin